-er c-- ccc cce ccg ccn cco ccr ccu ce- cec cee ceg cen ceo cer ceu cgc cge cgg cgn cgo cgr cgu cn- cnc cne cng cnn cno cnr cnu co- coc coe cog con coo cor cou crc cre crg crn cro crr cru cuc cue cug cun cuo cur cuu ec- ecc ece ecg ecn eco ecr ecu eec eee eeg een eeo eer egc ege egg egn ego egr egu en- enc ene eng enn eno enr enu eo- eoc eoe eog eon eoo eor eou erc ere erg ern ero err eru eu- euc eue eug eun eur gcc gce gcg gcn gco gcr gcu ge- gec gee geg gen geo ger geu ggc ggg ggn ggo ggr ggu gnc gne gnn gno gnr gnu goc goe gog gon goo gor gou grc gre grg grn gro grr gru gu- guc gue gug gun guo gur guu ncc nce ncg ncn nco ncr ncu ne- nec nee neg nen neo ner neu ngc nge ngg ngn ngo ngu nnc nne nng nnn nno nnu no- noc noe nog non noo nor nou nrc nre nrg nrn nro nrr nru nuc nue nug nun nuo nur nuu oc- occ ocg ocn oco ocr ocu oec oee oeg oen oeo oer ogc oge ogg ogn ogo on- onc one ong onn ono onr onu oo- ooc oog oon ooo oor or- orc ore org orn oro orr oru ou- ouc oue oun ouo our rcc rce rcg rcn rco rcr rcu re- rec ree reg ren reo rer reu rgc rge rgg rgn rgo rgr rnc rng rnn rno rnr rnu roc roe rog ron roo ror rou rrc rrg rrn rrr rru ruc rue rug run ruo rur ruu ucc uce ucg ucn uco ucr ucu uec uee ueg uen uer ugc uge ugg ugn ugo ugr ugu un- unc une ung unn uno unr unu uoc uoe uog uon uoo uor ur- urc ure urg urn uro urr uru uuc uue uug uun uur uuu